Building permits, zoning and septic rules in St. Lawrence County, New York
67Index Score / 100 #11 of 62 in New York
In St. Lawrence County, New York, building permits for work covered by the state Uniform Code come from the code-enforcement office of the town, village or city where the parcel sits12. Zoning and subdivision approval are also municipal and vary from place to place34. Septic permits likewise come from the local code-enforcement office, under the county sanitary code5.
At a glance
Building permit
Required for work covered by the state Uniform Code; apply through the local authority1
Zoning
Varies by town, village or city; confirm the parcel's zoning district locally36
Septic/sewage oversight
Construction or modification permits come from the local municipal code-enforcement office5
Adirondack Park land
Towns in the southeastern part of the county follow the state Adirondack Park Agency's land-use plan7
Building inspections
Required for permitted work, performed by the local code enforcement office8
Certificate of occupancy
Required for permitted work and changes in use or occupancy classification9
Publishes the county's overview of land-use authority: which municipalities have zoning and subdivision regulations, where the Adirondack Park Agency's state land-use plan applies instead, and how the County Planning Board reviews projects with cross-jurisdiction impact
Provides technical planning assistance to towns and villages, publishes the county's comprehensive land use plan, and reviews certain local projects for county or state impact; does not itself adopt zoning or issue building permits
Provides environmental health education and technical assistance (water quality, sewage nuisances, well water) and investigates public health nuisance complaints for St. Lawrence County
The county's own current summary (dated January 2026) of its Sanitary Code: explains that St. Lawrence County Public Health issues no permits or licenses itself and that sewage-system enforcement defers to municipal code enforcement officials and NYS DEC
Contact details are copied from each office’s official page and were checked against it on October 9, 2026.
Off-grid gear
Going off-grid in St. Lawrence County means bringing your own water and power. The kit we’d start with:
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Do you need a building permit in St. Lawrence County, New York?
Yes. In St. Lawrence County, work that must conform to the New York State Uniform Code requires a building permit, although certain exceptions are allowed10. The 2025 Uniform Code has applied to building-permit applications since December 31, 202511. Applications must identify the location and scope of work, tax-map number, address and occupancy classification and include the applicable construction documents12. A local authority may expressly exempt listed categories, including certain detached one-story structures no larger than 144 square feet, but exempt work must still comply with the codes13. Ask the code-enforcement office for the parcel's town, village or city which exceptions it has adopted before starting a small project1.
Who issues building permits in St. Lawrence County, and how do you reach them?
Start with the code-enforcement office for the parcel's town, village or city; the local program must identify who administers the Uniform Code and provide permits, inspections, stop-work procedures and occupancy certificates2. Permit holders must keep covered work accessible and exposed until the municipality inspects and accepts it14. If you are unsure which municipality covers a parcel, the St. Lawrence County Planning Department can help identify it and explain the county planning role, but it does not issue the local building permit15. Reach the Planning Department at 80 State Higway 310, Canton, New York 13617, phone 315-379-229215. Certain projects with wider county, state or cross-boundary effects may also be referred to the County Planning Board; nearly 90% of projects it reviews are returned quickly for local action7. The New York Department of State's published schedule lists $200 for a new one- or two-family home up to 1,500 square feet, plus $100 for each additional 1,000 square feet or fraction, and no fee for permit renewals; local departments may have their own schedules, so ask the local code office for its application and fees16.
Does St. Lawrence County have zoning?
St. Lawrence County does not supply one zoning answer for every parcel. Land-use rules and enforcement vary among towns, villages and the City of Ogdensburg, and 40 of the county's 47 municipalities have adopted some form of land-use management17. The county publishes an inventory of municipal zoning regulations, not a countywide zoning ordinance or parcel map; confirm the current district and rules with the relevant town, village or city6. Subdivision is also local: 26 municipalities enforce subdivision regulations, including standards for roads, drainage and lot layout4. Inside the southeastern part of the county, Adirondack Park Agency land-use controls add another layer3. In the Town of Canton, for example, minimum lot size, width, setbacks and height come from a district-by-district schedule, and lot size and frontage may be cut by 50 percent when a public or community water or sewer system serves the lot1819. Ask the municipal zoning or code office about setbacks, minimum lot and home size, accessory dwellings and allowed uses for the exact parcel.
How do septic permits work in St. Lawrence County?
In St. Lawrence County, obtain a permit to construct or modify an individual sewage system from the local code-enforcement office in the municipality where the property is located5. Systems with a flow of 1,000 gallons per day or more fall under New York State Department of Environmental Conservation jurisdiction and require SPDES permits and other approvals5. The county sanitary code applies throughout St. Lawrence County and supplements state law, and applicants for an individual system may have to show that no public or community sewer is available and accessible20. The county Public Health Department does not issue permits or licenses, but its sanitarian provides sewage and water-quality guidance, investigates public-health nuisances and can conduct dye tests to assess seepage2122. Before buying land or commissioning a design, contact the town or village code office to learn its application, site-review and inspection requirements; we could not confirm one countywide septic-inspection procedure.
Can you live in an RV or tiny home on your land in St. Lawrence County?
We could not confirm one countywide rule allowing long-term RV occupancy, temporary camping or tiny-home occupancy in St. Lawrence County. Those uses depend on the rules of the parcel's town, village or city, and enforcement varies by community3. The Town of Canton shows how local the answer is: an owner may live in an RV while building a dwelling only in conjunction with a valid building permit, an owner-occupied lot may host an RV for guests for 30 days in a 12-month period, and on undeveloped lots in the R and RA districts up to two RVs may be used for up to 120 days in a 12-month period, one of them by the owner23. Other towns may differ. A tiny home used as a dwelling must also follow the building-permit framework when its construction or placement must conform to the Uniform Code1. Parcels inside the southeastern part of the county face an additional Adirondack Park Agency land-use layer17. Before buying or placing a unit, ask the local code office whether the zoning district permits the use, whether temporary occupancy during construction is allowed, and what septic permit is required5.
Building a home in St. Lawrence County: the steps, in order
Identify the parcel's town, village or city, zoning district and Adirondack Park status; those determine which local and state land-use controls apply324.
If land will be divided, ask whether municipal subdivision approval and County Planning Board referral are required before treating a proposed lot as buildable25.
Ask the municipal code office for its building-permit application, locally adopted exceptions and fees; the application must cover the work location and scope, tax-map number, address, occupancy classification and applicable plans12.
Apply to that local code-enforcement office for the permit to construct or modify the individual sewage system5.
Keep covered work exposed and schedule the required construction inspections with the municipality26.
Obtain a certificate of occupancy or compliance after inspection; it is required for permitted work and changes from one use or occupancy classification to another9.
What to check before you buy land in St. Lawrence County
Septic and soil: only about 1.1% of St. Lawrence County's soils rate better than "very limited" for a conventional septic drain field, so discuss the site with the municipal code-enforcement office before counting on a standard system275. Floodplain: development in a Special Flood Hazard Area can require a local floodplain development permit even when the work is non-structural, so ask the municipal floodplain administrator to check the parcel and proposal28. Terrain: about 84.3% of the county's land sits at a 15% slope or gentler, while roughly 74.6% is wooded2930. Agriculture: normal agricultural practices may be exempt from freshwater-wetlands permitting, but filling, clear-cutting and construction of non-agricultural structures are excluded, and other approvals may still apply31. Adirondack Park: check whether the parcel falls in the southeastern part of the county, where the state land-use plan applies7. Taxes: the effective property tax rate is about 2.3%, with a median bill near $2,735 a year3233.
Watch-outs
St. Lawrence County Public Health issues no permits or licenses; obtain the permit to construct or modify an individual sewage system from the local code-enforcement office where the property is located215.
Land in the southeastern part of St. Lawrence County falls inside the Adirondack Park, where the state Adirondack Park Agency's land-use plan can override or add to a town's own zoning, so confirm Park status before you assume a town's rules are the whole picture7.
Land-use practices vary among St. Lawrence County municipalities, and published zoning information does not replace confirmation from the town, village or city responsible for the parcel324.
A mapped Special Flood Hazard Area can trigger a local floodplain development permit for structural or non-structural work28.
Written October 9, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.
St. Lawrence County highlighted among the New York counties · colored by Index score
How St. Lawrence County scores
Seclusion72100% ev.
Self-Sufficiency55100% ev.
Admin Boringness4490% ev.
Durability84100% ev.
Property Autonomy33100% ev.
Carry Cost73100% ev.
Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →
$151kTypical home
2.3%Property tax
$2,386Land / acre
41.1"Annual rain
0.3% of yrsSevere drought
0.2 / yr (+0.2)Mid-century 100°F days
8.7 daysMid-century dry spell
1.44" (+8.9%)Mid-century 1-day rain
1.61×Wildfire change factor
100%Forward climate coverage
$1,018Home insurance / yr
1.3% / yrInsurance growth
0.52%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
388,736People within 2 hr
33,754Radius comparison (15 mi)
39.9People / sq mi
0.9%Federal land
84.3%Land at 15% slope or less
1.1%Soils rated "not limited" for septic (strict USDA rating)
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Cities and towns in St. Lawrence County
Inside a city, town or township here, that government usually sets zoning and may issue its own building permits; the county’s rules above cover land outside them.
Not yet researched: Town of Brasher · Town of Canton · Village of Canton · Town of Clare · Town of Clifton · Town of De Kalb · Town of De Peyster · Town of Edwards · Town of Fine · Town of Fowler · Town of Gouverneur · Village of Gouverneur · Town of Hammond · Village of Hammond · Town of Hermon · Village of Heuvelton · Town of Hopkinton · Town of Lawrence · Town of Lisbon · Town of Louisville · Town of Macomb · Town of Madrid · Town of Massena · Village of Massena · Town of Morristown · Town of Norfolk · Town of Oswegatchie · Town of Parishville · Town of Piercefield · Town of Pierrepont · Town of Pitcairn · Town of Potsdam · Village of Potsdam · Village of Rensselaer Falls · Village of Richville · Town of Rossie · Town of Russell · Town of Stockholm · Town of Waddington · Village of Waddington
Answers from the rulebook for St. Lawrence County
What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.
St. Lawrence County rules
Local zoningVaries (with conditions)
Aggregate local zoning and land-use regulation across St. Lawrence County municipalities, not a county-administered zoning ordinance.
The county states that 40 of 47 municipalities have adopted some type of land-use management practice.
The county states that enforcement varies from community to community.
The county's local-regulations page distinguishes municipalities that have adopted zoning regulations from municipalities that have not adopted them.
Local municipal rules, subdivision regulations, and Adirondack Park Agency controls may apply depending on location.
municipalities with land-use management practices: 40 of 47 municipalities · municipalities enforcing subdivision regulations: 26 municipalities
“In St. Lawrence County 40 of the 47 municipalities have exercised those powers by adopting some type of land use management practices.”
3 more reviewed findings on this topic
Varies (with conditions) — Aggregate of municipal land-use regulations within St. Lawrence County, including towns, villages, and the City of Ogdensburg.
“In tables that highlight local land use regulations, an italicized municipality indicates that the specified land use law can be found within the local zoning regulations. A struckthrough municipality has not adopted the specified regulations.”
Varies (with conditions) — Aggregate of municipal and township land-use regulation within St. Lawrence County; the county is not asserted to administer each local ordinance.
“Enforcement of established regulations varies from community to community.”
Varies (with conditions) — Aggregate of municipal and township land-use controls across St. Lawrence County; the county page states that local units exercise land-use authority and that adoption and enforcement vary by community.
“In St. Lawrence County 40 of the 47 municipalities have exercised those powers by adopting some type of land use management practices. These land use practices have concentrated on establishing use regulations and minimum development standards regarding density, building setback, off-street parking, signs and other aspects of construction. Enforcement of established regulations varies from community to community.”
Zoning districtsPartial
Publication of municipal zoning-regulation status within St. Lawrence County
The county status table is an aggregate municipal inventory, not a countywide zoning map or ordinance.
The table identifies whether local regulations are in zoning regulations and includes Adirondack Park Agency coverage for some municipalities.
status-table update date: 2025-12-15 (The source labels the document as updated December 15th, 2025.)
“Z = In zoning regs APA = Covered by Adirondack Park Agency Regs [...] Updated December 15th, 2025”
2 more reviewed findings on this topic
Partial — Published municipal zoning maps and land-use regulation status within St. Lawrence County.
“Status of Land Use Regulations for Town & Villages”
Partial — Municipal zoning districts and land-use districts in St. Lawrence County.
“A struckthrough municipality has not adopted the specified regulations.”
Who permits septicCounty (with conditions)
County sanitary-code administration and enforcement for sewage systems and individual sewage treatment systems throughout St. Lawrence County.
The county code is supplemental to the New York State Public Health Law, State Sanitary Code, and other New York State laws.
Cities, towns, and villages may adopt additional health or sanitation ordinances if they are not inconsistent with state law or the State Sanitary Code.
Sewage systems with flow of 1,000 gallons per day or greater under NYSDEC jurisdiction must comply with required SPDES permits and other approvals.
New and renewal construction-permit applications must include the required fee.
Applicants for individual sewage treatment system construction permits may be required to show that no public or community sewage system is available and accessible.
The home or building owner is responsible for operating and maintaining an individual sewage treatment system in conformance with the code.
NYSDEC jurisdiction threshold: >= 1000 gallons per day (Systems at or above this flow are subject to required SPDES permits and other approvals.)
“The provisions of the Sanitary Code shall be in force throughout St. Lawrence County.”
One more reviewed finding on this topic
County (with conditions) — County sanitary-code requirements for sewage treatment systems in St. Lawrence County.
“duty of the Board and the Director to enforce”
Subdividing landRegulated (with conditions)
Subdivision and land division within municipalities of St. Lawrence County.
Subdivision regulations are enforced by 26 municipalities.
The county Planning Board may review projects meeting the statutory referral criteria, including parcels within 500 feet of specified boundaries or facilities.
Municipal subdivision rules differ by municipality.
“The most common form of land use control in the county is subdivision regulations which are enforced by 26 municipalities.”
2 more reviewed findings on this topic
Regulated (with conditions) — Subdivision review and regulation in St. Lawrence County, aggregated across municipalities.
“The most common form of land use control in the county is subdivision regulations which are enforced by 26 municipalities.”
Regulated (with conditions) — Subdivision and division of land within St. Lawrence County, as administered by applicable municipalities
“subdivision regulations which are enforced by 26 municipalities.”
County-wide zoningPresent
Zoning is municipal in New York (counties do not zone); 40 of the county's 47 municipalities have adopted land use management practices including zoning and subdivision regulations.
Work that must conform to the New York State Uniform Code or Energy Code throughout New York State except New York City, where the city has its own construction code; local authorities having jurisdiction administer and enforce the state requirements within their boundaries.
A local authority having jurisdiction may expressly exempt one or more listed categories of work from the building-permit requirement.
Permitted exemption categories include one-story detached tool or storage sheds, playhouses, or similar structures associated with one- or two-family dwellings or townhouses not exceeding 144 square feet gross floor area; temporary sets and scenery; certain window awnings; partitions or movable cases less than 5 feet 9 inches high; painting, wallpapering, tiling, carpeting, or similar finish work; listed portable equipment or appliances; certain equipment replacements; and repairs that do not affect fire and life safety.
A permit exemption does not authorize work violating the Uniform Code or Energy Code.
Beginning December 31, 2025, regulated parties submitting building permit applications must comply with the 2025 NYS Uniform Code, subject to the stated transition option before that date.
maximum gross floor area for listed detached accessory structures: <= 144 square feet (Only for one-story detached structures associated with one- or two-family dwellings or townhouses and used for tool/storage sheds, playhouses, or similar uses.) · height threshold for listed partitions or movable cases: < 5 feet 9 inches
“Each authority having jurisdiction shall include in its code enforcement program provisions requiring building permits to be required for work that must conform to either or both of the Codes.”
4 more reviewed findings on this topic
Required — Work required to conform to the New York State Uniform Code, administered by the applicable local authority having jurisdiction.
“An authority having jurisdiction’s code enforcement program must require any party who proposes to perform any work which must conform with the Uniform Code or Energy Code to obtain a building permit. However, the code enforcement program may exclude work in any of the following categories from the building permit requirement:”
Required — Work in St. Lawrence County that must conform to the New York Uniform Code or Energy Code.
“Each authority having jurisdiction shall include in its code enforcement program provisions requiring building permits to be required for work that must conform to either or both of the Codes. Where expressly set forth in their code enforcement program, an authority having jurisdiction may exempt from the requirement for a building permit any one or more of the categories of work listed in section 1203.3 (a)(1)(i) through (viii).”
Required — Work in St. Lawrence County required to conform to the New York State Uniform Code.
“Building permits must be required for any work which is required to conform to the Uniform Code. Certain exceptions are permitted.”
Required — Work required to conform to the New York State Uniform Code in St. Lawrence County
“Building permits must be required for any work which is required to conform to the Uniform Code. Certain exceptions are permitted.”
Owner-builder exemptionConditional
An owner-occupant completing installation work on a manufactured home under New York State requirements.
A person intending to own and occupy a manufactured home may apply for certification as the installer under 19 NYCRR Part 1210.
A certified installer must be on site while the manufactured home is installed.
If the homeowner completes a required installation component, the work must be supervised and certified by a Part 1210-certified installer.
This is a conditional owner-installation pathway, not a blanket exemption from permits, inspections, or the Uniform Code.
““A person who intends to own and occupy a manufactured home may apply for certification as the installer of such manufactured home””
2 more reviewed findings on this topic
Conditional — An owner who intends to own and occupy a manufactured home and seeks certification to install that manufactured home.
“19 NYCRR Part 1210 requires a certified installer to be on site while any manufactured home is being installed. “A person who intends to own and occupy a manufactured home may apply for certification as the installer of such manufactured home” pursuant to the requirements contained within Part 1210.”
Conditional — Owner-performed home-improvement work at an owner’s primary residence in New York, as to a New York State home-improvement-contractor license.
“Check your local government licensing requirements: New York State does not license home improvement contractors. However, some counties and local municipalities do, including New York City, Suffolk, Nassau, Westchester, Putnam, and Rockland counties, and the City of Buffalo.”
Building code adoptedAdopted
The New York State Uniform Fire Prevention and Building Code for construction statewide outside New York City, including residential construction in towns and other local governments.
The Uniform Code took effect January 1, 1984.
New York City was permitted to retain its own code.
Cities, towns, and villages outside New York City do not need to adopt the Uniform Code affirmatively; it is automatically in effect.
A local government cannot exclude itself from all or any part of the Uniform Code.
Building permits must be required for work that must conform to the Uniform Code, subject to permitted exceptions.
effective date: 1984-01-01
“The Uniform Code is applicable in every part of the State (except the City of New York, which was permitted to retain its own code).”
3 more reviewed findings on this topic
Adopted (with conditions) — Construction subject to the New York State Uniform Code in St. Lawrence County.
“The effective date of the 2025 NYS Uniform Code is December 31, 2025. In addition, the Code Council voted to provide that, during the transition period between the publication of the Notice of Adoption and the effective date of the 2025 NYS Uniform Code, a person shall have the option of complying with either the provisions of the 2025 Uniform Code or the 2020 Uniform Code.”
Adopted — Building construction in St. Lawrence County under the New York State Uniform Code.
“The Uniform Code, which took effect on January 1, 1984, prescribes the minimum standards for building construction in New York. It is applicable in every part of the State with the exception of New York City, which is currently permitted to retain its own code.”
Adopted (with conditions) — New York State Uniform Fire Prevention and Building Code as applicable in St. Lawrence County
“The effective date of the 2025 NYS Uniform Code is December 31, 2025.”
InspectionsRequired
Construction work for which a building permit has been issued and which is subject to the Uniform Code or Energy Code, administered by the applicable local authority having jurisdiction throughout New York State except New York City.
Inspections may be performed in person or remotely when the authority determines the remote inspection can be performed to the same level and quality and provides sufficient information; otherwise an in-person inspection is required.
Where applicable, inspections include the worksite before permit issuance, footing and foundation, concrete slab preparation, framing, structural/electrical/plumbing/mechanical/fire-protection systems, fire-resistant construction and penetrations, heating appliances/chimneys/flues/gas vents, Energy Code compliance elements, manufactured buildings or homes, and a final inspection.
Permit work must remain accessible and exposed until inspected and accepted; the permit holder must notify the authority when work is ready for inspection.
The state minimum standards do not require regular periodic inspections of owner-occupied one- and two-family dwellings or agricultural buildings used directly and solely for agricultural purposes, but this does not limit inspections invited by the owner or required where conditions threaten or present a public-health, safety, or welfare hazard.
maximum interval for periodic fire-safety and property-maintenance inspections of multiple dwellings and nonresidential occupancies: <= 3 years (This periodic-inspection interval does not apply as a requirement to owner-occupied one- and two-family dwellings or qualifying agricultural buildings.)
“Each authority having jurisdiction shall include in its code enforcement program provisions requiring the authority having jurisdiction, or an individual or entity contracted by the authority having jurisdiction and satisfying the requirements set forth in section 1203.2 (e)(2), to perform construction inspections required by the Codes including those listed in this paragraph, either in-person or remotely.”
4 more reviewed findings on this topic
Required — Building-code inspections administered by local authorities having jurisdiction in St. Lawrence County.
“to perform construction inspections required”
Required — Construction work subject to the New York State Uniform Code or Energy Code in St. Lawrence County.
“Each authority having jurisdiction shall include in its code enforcement program provisions requiring the authority having jurisdiction [...] to perform construction inspections required by the Codes”
Required — Construction subject to the Uniform Code in St. Lawrence County.
“Inspections of certain specified elements of the construction process must be required. Building permits holders must keep work accessible and exposed until inspected and accepted by the municipality.”
Required — Construction work subject to the New York State Uniform Code in St. Lawrence County
“Inspections of certain specified elements of the construction process must be required. Building permits holders must keep work accessible and exposed until inspected and accepted by the municipality.”
Certificate of occupancyRequired
Work subject to a building permit and the Uniform Code or Energy Code, and structures or portions converted from one use or occupancy classification or subclassification to another, throughout New York State except New York City.
Permission to use or occupy covered buildings or portions is granted only by issuance of a certificate of occupancy or certificate of compliance, except as provided for temporary certificates of occupancy.
Before issuance, the authority must inspect and determine compliance with applicable Codes and, where applicable, review structural-observation statements, special-inspection reports, flood-hazard certifications, Energy Code test results, and manufactured-building or manufactured-home seals, insignias, and data plates.
A temporary certificate may be issued before completion for a specified period and specified portions, subject to safe occupancy, operational fire and life-safety components, required means of egress, and completion of remaining work.
temporary certificate period: specified period (The permit holder must undertake to bring the structure into full compliance with the Codes.)
“The code enforcement program shall provide that, except as provided in section 1203.3 (d)(4), permission to use or occupy a building or structure, or portion thereof, for which a building permit was previously issued, or which has been converted from one use or occupancy classification or subclassification to another, shall be granted only by issuance of a certificate of occupancy or a certificate of compliance.”
4 more reviewed findings on this topic
Required — Work subject to a building permit and changes from one use or occupancy classification to another.
“An authority having jurisdiction’s code enforcement program must provide for the issuance of a certificate of occupancy or certificate of compliance for: • all work which is the subject of a building permit; and • all structures, buildings, or portions thereof, which are converted from one use or occupancy classification or sub-classification to another.”
Required — Work in St. Lawrence County for which a building permit is required and occupancy-classification changes.
“A certificate of occupancy or a certificate of compliance must be required”
Required — Work in St. Lawrence County for which a building permit is required and changes in general occupancy classification.
“A certificate of occupancy or a certificate of compliance must be required (1) for all work for which a building permit was required and (2) whenever the general occupancy classification of a building is changed.”
Required — Work subject to a building permit and changes in general occupancy classification in St. Lawrence County
“certificate of occupancy or a certificate of compliance must be required”
Septic permitLimited
Facilities discharging sewage-wastewater to groundwater through septic systems or similar systems statewide.
A SPDES permit is not required when total groundwater discharge design flow is less than 1,000 gallons per day and the wastewater contains no industrial or other non-sewage wastes.
The exemption does not eliminate possible approval requirements from the appropriate city health department, county health department, or district office of the New York State Department of Health before construction.
Other DEC permits or approvals from other agencies may also be required.
groundwater discharge design flow: < 1000 gallons per day (Sewage-wastewater containing no industrial or other non-sewage wastes)
“No SPDES permit is required [...] less than 1,000 gallons per day [...] no industrial or other non-sewage wastes”
One more reviewed finding on this topic
Limited — Construction of a residential individual onsite wastewater treatment system using an alternative system under 10 NYCRR Appendix 75-A.
“Prior to construction of an individual onsite wastewater treatment system utilizing an alternative system pursuant to 10 NYCRR Appendix 75-A, plans for the design of the system shall be reviewed and approved by the State or county health department official having jurisdiction.”
Septic inspectionLimited
Post-construction certification for residential alternative onsite wastewater treatment systems under Appendix 75-A.
A design professional must supervise construction.
The design professional must certify after construction that supervision occurred and that construction conforms to approved plans.
The cited passage establishes certification, not a general periodic inspection schedule for routine operation.
“a design professional shall provide [...] a certification”
Off-grid sanitationAllowed (with conditions)
Use of an individual onsite wastewater treatment system where a municipal or communal wastewater system is unavailable.
The system must comply with statewide Appendix 75-A minimum standards.
Alternative systems require prior review and approval by the State or county health department official having jurisdiction.
Design must be prepared by or under the supervision of a design professional.
“when a municipal or communal system is not available”
Mandatory utility hookupConditional
Residential realty subdivisions, including subdivisions of fewer than 50 lots.
Community water and/or sewers may be required when public services are available, groundwater quality or quantity is poor, or site conditions are unacceptable for onsite wastewater treatment systems.
The source addresses subdivision approval and does not establish a universal statewide connection mandate for every individual residential parcel.
“Yes, if there is good reason such as: public services are available”
Agricultural exemptionConditional
Farm operations located within a New York agricultural district, including associated land, on-farm buildings, equipment, manure processing and handling facilities, and qualifying agricultural practices.
The protection applies only to farm operations in an agricultural district.
Local governments must exercise their planning and land-use authority consistently with Article 25-AA of the Agriculture and Markets Law.
Local governments may not unreasonably restrict or regulate the covered farm operation unless public health or safety is threatened.
Only farm operations are protected; the Department evaluates whether the regulated activity encompasses a farm operation.
The reasonableness analysis considers whether the restriction is unreasonable on its face and as applied to the particular situation, and depends on the totality of the circumstances.
A farmer, municipality, or other eligible requester may seek a Department opinion concerning the effect of a proposed or existing local law or ordinance.
If the Department determines that a local law or ordinance is unreasonably restrictive, it may seek remediation and the Commissioner may issue an order to comply or bring an enforcement action.
“Local governments, when exercising their powers to enact and administer comprehensive plans and local laws, ordinances, rules or regulations, shall exercise these powers in such manner as may realize the policy and goals set forth in this article, and shall not unreasonably restrict or regulate farm operations within agricultural districts in contravention of the purposes of this article unless it can be shown that the public health or safety is threatened.”
3 more reviewed findings on this topic
Available (with conditions) — Normal agricultural practices in or near regulated freshwater wetlands in St. Lawrence County.
“normal agricultural practices, except filling, clear cutting of trees, or construction of non-agricultural structures;”
Conditional — Farm operations within New York agricultural districts seeking protection from unreasonable local planning, zoning, land-use, or permitting restrictions.
“shall not unreasonably restrict or regulate farm operations within agricultural districts in contravention of the purposes of this article unless it can be shown that the public health or safety is threatened.”
Available (with conditions) — Agricultural uses and agricultural-use structures within the Adirondack Park Agency jurisdiction, including relevant Freshwater Wetlands Act and Wild, Scenic and Recreational Rivers System Act permitting contexts.
““Agricultural uses” and “agricultural use structures” are generally exempted from permitting requirements under New York State’s Adirondack Park Agency Act”
Driveway accessRequired
New or modified commercial access to a New York State highway, including changes of use or expansions of existing development on a State highway.
A highway work permit from NYSDOT is required.
The commercial driveway/access permit review generally consists of initial proposal review, design review, and final submission review.
Final submission may require insurance documentation, performance security, permit fees, and additional documentation.
A simple commercial driveway project may qualify for a single-stage expedited review if it meets the applicable criteria.
The page states that the PERM 33-COM application and checklist is used for commercial highway work permit submissions, including minor or major commercial driveways, minor home business driveways, or subdivision streets.
“If your commercial property development plans involve new or modified access to a state highway, or involve any change of use or expansion of an existing development on a state highway, you will need a highway work permit from the New York State Department of Transportation (NYSDOT).”
2 more reviewed findings on this topic
Required — A residence located on a New York state highway when building or modifying a driveway
“If your residence is on a State highway, you will need a permit from the NYS Department of Transportation to build or modify a driveway.”
Required — Building or modifying a residential driveway where the residence is on a New York State highway.
“If your residence is on a State highway, you will need a permit from the NYS Department of Transportation to build or modify a driveway.”
Building in a floodplainRequired
Development in FEMA-mapped Special Flood Hazard Areas in New York State, with local administration by the municipality having jurisdiction.
Local communities participating in the National Flood Insurance Program regulate development in Special Flood Hazard Areas.
Private development is subject to local floodplain development permits.
Development funded and undertaken by the State or Federal government is an exception to the local-permit rule and is regulated by the responsible agency, subject to technical assistance by NYSDEC and FEMA.
Each participating community has a designated floodplain administrator, usually the building inspector or code enforcement official.
The local laws apply to development undertaken by any county, city, town, village, school district, or public improvement district within the community.
The source states that any new structure or structure substantially improved or substantially damaged is subject to floodplain development regulations, with substantial improvement or damage exceeding 50% of the structure’s market value.
substantial improvement or damage threshold: > 50 percent of structure market value
“Private development is subject to local floodplain development permits.”
One more reviewed finding on this topic
Limited — Development in mapped or designated Special Flood Hazard Areas within St. Lawrence County communities participating in the National Flood Insurance Program.
“Non-structural development within a Special Flood Hazard Area is also subject to a local floodplain development permit.”
Permit feesVariable (with conditions)
New York State Department of State building-permit administration and enforcement fees.
The schedule is identified as having a publication date of August 2022.
Fees vary by project type, building type, area, dwelling unit, sleeping room, inspection, and permit category.
For one- and two-family homes including accessory structures constructed contemporaneously, the schedule lists $200 for the first 1,500 square feet and $100 for each additional 1,000 square feet or fraction thereof.
Permit renewals have no fee.
Building-permit fees include construction inspections required as a result of the permit; additional inspection fees may apply.
Local authorities may have separate fees or requirements.
publication date: August 2022 · one- and two-family homes fee for first 1,500 square feet: 200 USD (including accessory structures constructed contemporaneously) · one- and two-family homes fee for each additional 1,000 square feet or fraction: per 100 USD (after the first 1,500 square feet) · permit renewal fee: 0 USD
“$ 200 First 1,500 square feet of area $ 100 Each additional 1,000 square feet of area or fraction thereof”
2 more reviewed findings on this topic
Published (with conditions) — Department of State administration and enforcement fees for building permits and related inspections under 19 NYCRR Part 1202.
“Department of State Administration and Enforcement Fee Schedule (Publication Date: August 2022) In accordance with 19 NYCRR Part 1202, the following fees shall be paid to the Department of State:”
Published (with conditions) — NYSDOT highway work permits, including residential driveway permits and commercial driveway/access permits on state highways
“A list of NYSDOT highway work permit fees can be found here: NYSDOT Permit Fee Matrix”
Permit processPublished (with conditions)
Building-permit applications for work subject to the New York State Uniform Code or Energy Code, administered through the authority having jurisdiction’s code-enforcement program.
A building permit is required for work that must conform to the Uniform Code or Energy Code.
The code-enforcement program may exclude listed categories, including qualifying detached structures not exceeding 144 square feet, temporary sets and scenery, certain awnings, partitions or movable cases under 5 feet 9 inches, finish work, listed portable equipment, qualifying equipment replacements, and repairs that do not affect fire and life safety.
Excluded work must still conform to applicable Uniform Code and Energy Code provisions.
An authority having jurisdiction may instead require permits for all work subject to the Uniform Code and Energy Code.
Applications must include, at minimum, the work location, nature, extent and scope; tax map number and street address; occupancy classification; applicable special-inspection statement; and acceptable construction documents.
Construction documents may need site plans, code-compliance information, structural and building-system information, Energy Code compliance, flood-hazard information, and licensed architect or professional-engineer documentation where applicable.
detached accessory structure exemption threshold: <= 144 square feet (one-story detached structures associated with one- or two-family dwellings or multiple single-family dwellings used for tool/storage sheds, playhouses, or similar uses) · movable partition or case exemption height: < 5 feet 9 inches
“An authority having jurisdiction’s code enforcement program must require any party who proposes to perform any work which must conform with the Uniform Code”
2 more reviewed findings on this topic
Partial — Uniform Code administration and enforcement process applicable through local authorities in St. Lawrence County
“Each local government’s program for administration and enforcement of the Uniform Code must conform with the requirements of Part 1203, and must include the following features: 1. Designating Responsibility for Code Enforcement. The persons, offices, departments, agencies, or combinations thereof responsible for administration and enforcement of the Uniform Code must be clearly identified.”
Published (with conditions) — Commercial property development involving new or modified access to a New York state highway, change of use, or expansion of an existing development on a state highway
“The application and review process generally consists of the following three stages of review:”
Campground & park staysLimited
Temporary camping at New York State Department of Environmental Conservation campgrounds statewide.
All campers must register and obtain a camping permit.
Check-in is from 2:00 p.m. to 9:00 p.m.; campers must register and occupy the campsite by 9:00 p.m. on the first reservation night or the campsite may be re-rented and fees may be forfeited.
Campers must vacate by 11:00 a.m. on the final day.
Camping permits are limited to 14 nights but may be renewed depending on site availability.
From July 1 through Labor Day, only 14 cumulative nights of camping can be obtained at any campground.
Campsite occupancy is limited to 6 persons, two tents or one hard-wheeled equipment and one tent, and two vehicles; occupancy varies for Family campsites.
Violation of any campground rule is grounds for eviction; an evicted person is not entitled to a refund or to return for one week.
maximum permit duration: <= 14 nights (May be renewed depending upon availability of sites.) · seasonal cumulative camping limit: <= 14 nights (From July 1 through Labor Day, at any campground.) · campsite occupancy: <= 6 persons (Occupancy varies for Family campsites.)
“All campers must obtain a camping permit. Campers may check in from 2:00 p.m. to 9:00 p.m. but must register and occupy their campsite by 9:00 p.m. on the first night of their reservation or the campsite will be subject to re-rental and fees may be forfeited. Campers must vacate their campsite no later than 11:00 a.m. on the final day. Camping permits will not be issued for more than 14 nights but may be renewed depending upon availability of sites. From July 1 through Labor Day only 14 cumulative nights of camping can be obtained at any campground.”
county building authorityLimited
County administration and enforcement of the Uniform Code and Energy Code within a local government, including unincorporated town areas, when the local government has opted out or when the Secretary of State designates the county.
Every local government ordinarily administers and enforces the Uniform Code and Energy Code.
A local government may opt out by local law enacted before July 1; the opt-out becomes effective January 1 of the following year.
After a local-government opt-out, the county administers and enforces the codes within that local government.
The county may itself enact a local law opting out; if both local government and county opt out, the Secretary of State administers and enforces the codes.
Counties may charge fees to defray administration and enforcement costs.
A responsible county must establish a code-enforcement program by local law, ordinance, or other appropriate regulation.
local-government opt-out deadline: < July 1 · successor enforcement date: January 1 (the January 1 next succeeding the effective date of the local law)
“The secretary may designate the county in which such local government is located to administer and enforce the uniform code in such local government.”
One more reviewed finding on this topic
Limited — New York counties' administration and enforcement of the Uniform Fire Prevention and Building Code, and county adoption of higher or more restrictive construction standards affecting residential construction.
“In such event the county in which said local government is situated shall administer and enforce such codes within such local government [...] unless the county shall have enacted a local law providing that it will not enforce such codes within that county.”
county zoning authorityNone
New York counties' authority to adopt Euclidean zoning regulations for unincorporated land.
New York State law authorizes zoning power for cities, towns, and villages, not counties.
Counties retain other land-use-related powers under separate statutes and municipal home rule provisions, but those powers are not general county zoning authority.
“No enabling legislation had been adopted that delegates zoning power to counties.”
Inside cities and towns in St. Lawrence County
Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.
Minimum dwelling sizeSpecified
Multiple-family dwellings in the Town of Canton, St. Lawrence County.
The rule applies to multiple-family dwellings.
The code separately states that maximum gross density may not exceed eight units per acre provided all health and State Building Code requirements are met.
efficiency minimum habitable floor area: >= 350 square feet · one-bedroom minimum habitable floor area: >= 550 square feet · two-bedroom minimum habitable floor area: >= 800 square feet · three-bedroom-or-more minimum habitable floor area: >= 900 square feet · maximum gross density: <= 8 units per acre (provided all health and State Building Code requirements are met)
“The maximum gross density shall not exceed eight (8) units per acre [...] Minimum habitable floor area requirements: a. Efficiency: 350 square feet.”
One more reviewed finding on this topic
Specified — Multiple-family dwellings in the Town of Canton.
“Minimum habitable floor area requirements: a. Efficiency: 350 square feet. b. One bedroom: 550 square feet. c. Two bedrooms: 800 square feet. d. Three bedrooms or more: 900 square feet.”
Minimum lot sizeSpecified
Principal-use lots and subdivision or development lots in the Town of Canton.
Minimum lot size and lot width vary by zoning district under Schedule B.
For a flag lot, the buildable portion must meet the minimum lot size for its zone and the pole portion is excluded from the calculation.
Schedule B minimum lot size and frontage may be reduced by 50 percent when the lot is served by a public or community water or sewer system.
The code contains additional exceptions for nonconforming lots and cluster development.
“The minimum lot size and lot frontage minimum requirement for a lot as provided in Schedule B may be reduced by fifty percent (50%) if the lot is served by a public/community water or sewer system.”
SetbacksSpecified
Principal-use development and related lots in the Town of Canton.
Setbacks and lot standards vary by zoning district and overlay under Schedule B.
Front setbacks are measured from the street centerline and may be adjusted to the average of adjacent improved lots.
Side yards may be varied for irregular or nonparallel side walls, but may not be narrower at any point than one-half of the otherwise required minimum.
Corner lots must treat both street-facing sides as front yards.
For lots served by public or community water or sewer, Schedule B minimum lot size and frontage may be reduced by 50 percent.
“Regulations governing lot size and lot width; front, side, and rear yard setback requirements; height and maximum allowable impervious surfaces for principal use development in each district and overlay are specified in Schedule B: Lot Dimensional Standards”
Living in an RVTemporary only (with conditions)
Recreational vehicles used for living, sleeping, or housekeeping in the Town of Canton.
On an owner-occupied residential lot, use for guests or occupants is limited to 30 days within a 12-month period, with no occupancy fee, and the RV must be in the side or rear yard.
An RV may house the lot owner temporarily while a residential dwelling is being constructed only in conjunction with a valid building permit.
On undeveloped lots in the R and RA zoning districts, up to two RVs may be used for up to 120 days within a 12-month period; one must be used by the property owner, no fee is charged, principal-building setbacks apply, and generators may not run before 7:00 a.m. or after 9:00 p.m.
owner-occupied residential lot duration: 30 days per 12-month period (Guest or occupant temporary housing.) · undeveloped R or RA lot duration: 120 days per 12-month period (Up to two RVs; one must be used by the property owner.)
“A recreational vehicle intended for portable temporary housing of guests or occupants may be used for living, sleeping or housekeeping purposes when parked or stored on an owner-occupied residential lot for up to thirty (30) days within a twelve (12) -month period.”
Who permits septicLocal (with conditions)
Individual sewage-system construction or modification permits in the municipality where the property is located.
The permit is obtained from the Local Code Enforcement Office in the municipality where the property is located.
“obtained from the Local Code Enforcement Office”
Septic permitRequired
Construction or modification of an individual sewage system in a St. Lawrence County municipality.
The permit must be obtained from the Local Code Enforcement Office in the municipality where the property is located.
Systems with flow of 1,000 gallons per day or greater are under NYSDEC jurisdiction and require SPDES permits and other approvals.
NYSDEC flow threshold: >= 1000 gallons per day (NYSDEC/SPDES jurisdiction)
“Individual sewage system construction or modification permits shall be obtained from the Local Code Enforcement Office in the municipality where the property is located.”
Set by your town or city, not the county
In New York, zoning is adopted by each town or city, so St. Lawrence County has no county-wide answer on these. Find your town or city in the list of places on this page, or call its clerk or zoning administrator.
Lot coverage
Building height
Camping on your land
Tiny homes
Manufactured homes
Accessory dwellings
Short-term rentals
Still unanswered
We looked and could not find an official answer yet. Silence is not permission — ask the county directly.
Well permit — Private well permits in St. Lawrence County.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Living off-grid in St. Lawrence County, New York
Is St. Lawrence County a good place to live off-grid or homestead?
St. Lawrence County scores 67/100 on the Bolthole Index, a strong county profile. Its strengths: 24 operating mines and manageable long-term carry cost. Watch-outs: a weaker property-autonomy legal backdrop.
Do you need a building permit in St. Lawrence County, New York?
St. Lawrence County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Town or village code enforcement office; NYSDOH Canton District Office covers environmental health. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.
How much does land cost in St. Lawrence County, New York?
Land in St. Lawrence County runs about $2,386 per acre, based on the latest county data.
What is the water situation in St. Lawrence County?
St. Lawrence County gets about 41.1" of rain a year, with severe drought in roughly 0.3% of years.
How remote is St. Lawrence County?
A typical private-land location has about 33,754 people within 15 miles and 3,163,502 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.
